FFa3PArc Class Reference

#include <FFa3PArc.H>

Collaboration diagram for FFa3PArc:

Public Member Functions
	FFa3PArc (const FaVec3 &p1, const FaVec3 &p2, const FaVec3 &p3)
FaVec3	getCenter () const
FaVec3	getNormal () const
double	getRadius () const
double	getArcLength () const
FaVec3	getPointOnArc (double lengthFromStart) const
FaVec3	getTangent (double lengthFromStart) const
double	getLengthWMaxDefl (double maxDeflection) const
FaMat34	getCtrlPointMatrix (int pointNumber, const FaVec3 &positiveNormal, bool normalIsSignOnly=true) const
bool	isArc (double epsilon=1.0e-10) const
bool	isInside (const FaVec3 &point) const
bool	isOnCenterSide (const FaVec3 &point) const

Static Public Member Functions
static FFa3PArc	makeFromTangentP1P2 (const FaVec3 &t, const FaVec3 &p1, const FaVec3 &p2, bool startTan=true)
static FFa3PArc	makeFromP1T1T2L (const FaVec3 &p1, const FaVec3 &t1, const FaVec3 &t2, double arcLength)
static FaVec3	findCenter (const FaVec3 &P1, FaVec3 P1C, const FaVec3 &P2, FaVec3 P2C)

Public Attributes
FaVec3	P [3]

Constructor & Destructor Documentation

FFa3PArc()

FFa3PArc::FFa3PArc ( const FaVec3 &  p1, const FaVec3 &  p2, const FaVec3 &  p3  )

inline

Member Function Documentation

findCenter()

FaVec3 FFa3PArc::findCenter ( const FaVec3 &  P1, FaVec3  P1C, const FaVec3 &  P2, FaVec3  P2C  )

static

Finds the center of a circle based on two points on circle and vectors twowards centre at the two locations.

This is done based on equations : P1 + a*P1C = C P2 + b*P2C = C

Using x and y component equations as 4 equations with 4 unknowns.

getArcLength()

double FFa3PArc::getArcLength

(

)

const

Returns the length of this arc along the arc.

getCenter()

FaVec3 FFa3PArc::getCenter

(

)

const

getCtrlPointMatrix()

FaMat34 FFa3PArc::getCtrlPointMatrix	(	int	pointNumber,
		const FaVec3 &	positiveNormal,
		bool	normalIsSignOnly = true
	)		const

getLengthWMaxDefl()

double FFa3PArc::getLengthWMaxDefl

(

double

maxDeflection

)

const

Returns the length along the arc that will make the sagitta (distance from the chord to the arc)

See also

maxDeflection long.

getNormal()

FaVec3 FFa3PArc::getNormal

(

)

const

getPointOnArc()

FaVec3 FFa3PArc::getPointOnArc

(

double

lengthFromStart

)

const

getRadius()

double FFa3PArc::getRadius

(

)

const

getTangent()

FaVec3 FFa3PArc::getTangent

(

double

lengthFromStart

)

const

isArc()

bool FFa3PArc::isArc

(

double

epsilon = 1.0e-10

)

const

isInside()

bool FFa3PArc::isInside

(

const FaVec3 &

point

)

const

isOnCenterSide()

bool FFa3PArc::isOnCenterSide

(

const FaVec3 &

point

)

const

makeFromP1T1T2L()

FFa3PArc FFa3PArc::makeFromP1T1T2L ( const FaVec3 &  p1, const FaVec3 &  t1, const FaVec3 &  t2, double  arcLength  )

static

makeFromTangentP1P2()

FFa3PArc FFa3PArc::makeFromTangentP1P2 ( const FaVec3 &  t, const FaVec3 &  p1, const FaVec3 &  p2, bool  startTan = true  )

static

Member Data Documentation

P

FaVec3 FFa3PArc::P[3]

---

The documentation for this class was generated from the following files:

• fedem-foundation/src/FFaLib/FFaAlgebra/FFa3PArc.H
• fedem-foundation/src/FFaLib/FFaAlgebra/FFa3PArc.C